Railway-crossing.



T. LENNOX. RAILWAY CROSSING. APPLICATION FILED J ULY30, 1908. RENEWED MAY 20, 1912.

' Patented Nov. 5, 1912.

' mzfaz" Application filed July 30, 1908, Serial No. 446,120. Renewed May '20, 1912.

FFTQE.

TALBOT LENNOX, OF CHICAGO, ILLINOIS, ASSIGNOR TO MARSHALL F. HOLMES, OF CHICAGO, ILLINOIS; LILLIAN H. HOLMES EXECUTE-IX OF SAID MARSHALL F.

HOLMES, DECEASED.

RAILWAY-CROSSING.

To all whom it may concern.

Be it known that I, TALBOT LENNOX, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Railway-Crossings, of which the following is a full, clear. concise, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to structures for rendering intersecting track rails continuous and particularly to that class of structures in which turn-tables are employed that carry rail sections adapted for alinement with stationary sections of intersecting track rails.

My invention will be well understood by reference to the preferred embodiment there of shown in the accompanying drawing, in which- Figure 1 shows a turn-table structure in association with rail sections that are to be made continuous by the rail section carried by the turn-table structure.

acters of reference throughout the different figures.

I have illustrated a structure for rendering track rails that intersect at right-angles, continuous. Vi hile I have illustrated and will specifically describe a structure adapted to track rails that intersect at right angles, I do not thereby limit myself to the adaptation of my invention to track rails that intersect at right-angles, for the adaptation of my invention to track rails that intersect at other angles, is obvious.

In the embodiment of the invention shown. there are four turn-tables per crossing, one turn-table being located at each crossing corner. Where there are four turn-tables per crossing, each turn-table a, carries but one rail section I) that is adapted for alinement with the stationary sections 0 c of track rails. The rail section 6 carried by the turntable is preferably integrally formed with the turn-table, as illustrated most clearly in Fig. 2, though I do not wish to be limited to a construction in which the rail section b Specification of Letters Patent.

clamping quadrants f which are bolted to a base plate 9 and which have clamping engagement with the flanges of the rail sections 0, as indicated in Fig. 6. The base plate 9 is provided with an upwardly projecting vertical portion it that constitutes a supporting plate upon which the turn-table may move, the extension 7?, being circular and of a diameter slightly in excess of the diameter of the turn-table a, so that a sulfici-ent clearance is assured between the periphery of the turn-table and the clamping quadrant-s f and between the periphery of the turn-table and the opposing end faces of the rail sections 0. The insetting flanges e, by engagement with the peripheral grooves (Z in the turn-table, serve to prevent vertical displacement of the turn table, while at the same time permitting the turntable to move upon the top of the base plate portion h. The insetting flanges (Z take part in confining the turn-table to a fixed vertical axis of rotation.

The fixed position of the base plate is always assured, inasmuch as the clamping quadrants f are suitably secured to the base plate and snugly fill the spaces between the associate approach rail sections 0. In the preferred embodiment of the invention, the movement of the turn-table is effected by the co-action of operating mechanism with the rigidly secured base plate It and the turn-table a. In order that the base plate it may take part in effecting the fractional rotation of the turn-table supported thereon, it is provided with a suitable formation, which is preferably a slot Z, for engaging an actuating bar 0, the slot Z guiding said bar in straight line travel. The pin m carried by the bar 0, engages a slot 79 in the turntable. The slots Z and p are so inter-related that an operating movement imparted to the actuating bar 0 by a switch attendant, will effect the rotation of the turn-table through the desired angle.

slot 9, thereby to lock the turn-table in that position, and when the turn-table is turned in an alternative position, the pin 5- engages the slot 9 and holds the turn-table in the alternative position. The portions of the turn-table where the slots at are provided and the pins r and 8 thus constitute two locking devices, one for holding the turntable in one posit-ion of adjustment and the other for holding the turn-table in the other position of adjustment.

While. I have herein shown and particularly described the preferred embodiment of my invention, I do not wish to limit myself to the precise construction shown, as changes may readily be made without depart-ing from the spirit thereof.

Having thus described my invention, I claim as new and desire to secure by Letters Patent the following 1. A railroad crossing structure, including a base plate, a turn-table mounted thereon'and carrying a rail section adapted for alinement with track rail sections, and an actuating bar for turning the turn-table, said turn-table and bar being provided with one set of interlocking elements to hold the turn-table in one adjusted position and another set of interlocking elements to hold the turn-table in an alternative posit-ion.

2. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and an actuating bar confined to straight line travel, for turning the turntable, said turn-table and bar being provided with interlocking elements for holding the turn-table in an adjusted position.

3. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and an actuating bar confined to substantially straight line travel, for turning the turntable, said turn-table and bar being provided with interlocking elements for holding the turn-table in each of its adjusted positions.

4. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and an actuating bar confined to substantially straight line travel, for turning the turntable, said turn-table and bar being provided with one set of interlocking elements to hold the turn-table in one adjusted position and another set of interlocking elements to hold the turn-table in an alternative position.

5. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and an actuating bar for turning the turn-table,

substantially said bar being in shifting engagement with the turn-table and base plate, said turn-table and bar being provided with one set of interlocking elements to hold the turn-table in one adjusted position and another set of interlocking elements to hold the turn-table in an alternative position.

6. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and an actuating bar confined to substantially straight line travel, for turning the turntable, said bar being in shifting engagement with the turn-table and base plate, said turn-table and bar being provided with interlocking elements for holding the turntable in an adjusted position.

7. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and an actuating bar confined to' substantially straight line travel, for turning the turntable, said bar being in shifting engagement with the turn-table and base plate, said turntable and bar being provided with interlocking elements for holding the turntable in each of its adjusted positions.

8. A railroad crossing structure, lIlOlllCl.

ing a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and an actuating bar confined to substantially straight line travel, for turning the turntable, said bar being in shifting engagement with the turn-table and base plate, said turn-table and bar being provided with one set of interlocking elements to hold the turntable in one adjusted position and. another.

set of interlocking elements to hold the turntable in an alternative position.

9. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and an actuating bar for turning the turn-table, said bar entering between the turn-table and its base plate, said turn-table and base plate being provided with slots with which said bar has engagement to efiect the operation of the turn table, said turn-table and bar. being provided with one set of interlocking elements to hold the turn-table in one adjusted position and another set of interlocking elebase plate being provided with slots with which said bar has engagement to effect the operation of the turn-table, said. turntable and bar being provided with interlocking elements for holding the turn-table in an adjusted position.

11. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and an actuating bar confined to substantially straight line travel, for turning the turntable, said bar entering between the turn table and its base plate, said turn-table and base plate being provided with slots with which said bar has engagement to effect the operation of the turn-table, said turn-table and bar being provided with interlocking elements for holding the turn-table in each of its adjusted positions.

12. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and an actuating bar confined to substantially straightline travel, for turning the turn table, said bar entering between the turntable and its base plate, said turn-table and base plate being provided with slots with which said bar has engagement to eflect the operation of the turn-table, said turntable and bar being provided with one set of interlocking elements to hold the turn-table in one adjusted position and another set of interlocking elements to hold the turn-table in an alternative position.

13. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections and a turn-table actuating bar entering between the base plate and turn-table and guided by the base plate in a substantially straight line of travel, the bar having sliding operating engagement with the turn-table, such sliding connection being gearless.

14:. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and a turn-table actuating bar entering between the base plate and turn-table and guided by the base plate in a substantially straight line of travel, said turn-table and bar being provided with interlocking elements for holding the turn-table in an adjusted position.

15. A. railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sect-ions and a turn-table actuating bar entering between the base plate and turn-table and guided by the base plate in a substantially straight line of travel, said turn-table and bar being provided with one set of interlocking elements to hold the turn-table in one adjusted position and another set of interlocking elements to hold the turn-table in an alterna tive position.

16. A railroad crossing structure, includ ing a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and a turn-table actuating bar entering between the base plate and turntable and guided by the base plate in a substantially straight line of travel, said turn-table and bar being provided with interlocking elements for holding the turn-table in each of its adjusted positions.

17. A railroad crossing structure, including a base plate, a turn-table mounted thereon and carrying a rail section adapted for alinement with track rail sections, and a turn-table actuating bar in pin and slot engagement with the turn-table, entering between the base plate and turn-table and guided by the base plate in a substantially straight line of travel.

In witness whereof, I hereunto subscribe my name this 27th day of July, A. D. 1908.

TALBOT LENNOX.

Witnesses:

G. L. CRAGG, L. G. S'rRoH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

